Yes! This happened to me today for the first time and I know why. I had a heavy object on top of my trunk and pushed the fob to unlatch the trunk; it didn't work and neither did the button by the driver's seat. (I actually had to hunt for the keyhole because after five years, this was the first time I used it.) Okay--the solution. Go to the glove box and you will find a switch that locks and unlocks your trunk. Set it to ON (depressed). P.S. I found the solution in the driver's manual!